Toro 74538, 74539, 74548, 74550, 74549 Service Manual

LCE Products

Toro GrandStand

Stand-on Mower

Service Manual

ABOUT THIS MANUAL

This service manual was written expressly for Toro and Lawn-Boy service technicians. The Toro Company has made every effort to make the information in this manual complete and correct.

Basic shop safety knowledge and mechanical/electrical skills are assumed. The Table of Contents lists the systems and the related topics covered in this manual.

For additional information on the electrical system, please refer to the Toro Electrical Demystification Guide (4924761) and subsequent. For service information on drive systems, please refer to the Hydro-Gear BDP service manual (492-4779). For information specific to the engines used on this unit, refer to the appropriate engine manufacturer’s service and repair instructions.

Toro GrandStand model years 2009 - 2010 are covered in this manual. The manual may also be specified for use on later model products.

Both 2009 and 2010 models were used during the writing of this manual. You may see slight differences in the photos depending on which model you are servicing.

Due to the compact design, parts were removed for photographic purposes when necessary.

The hydraulic components are sophisticated pieces of machinery. Maintain strict cleanliness control during all stages of service and repair. Cover or cap all hose ends and fittings whenever they are exposed. Even a small amount of dirt or other contamination can severely damage the system.

We are hopeful that you will find this manual a valuable addition to your service shop. If you have any questions or comments regarding this manual, please contact us at the following address:

The Toro Company

Residential and Landscape Contractor Service Training Department

8111 Lyndale Avenue South

Bloomington, MN 55420

The Toro Company reserves the right to change product specifications or this manual without notice.

Copyright© All Rights Reserved

©2011 The Toro Company

ABOUT THIS MANUAL

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TABLE OF CONTENTS

Safety Information

General Information 1-1 Think Safety First 1-1

Specifications

Torque Specifications 2-1 Standard Torque for Dry, Zinc Plated & Steel Fasteners (Inch Series) 2-2 Standard Torque for Dry, Zinc & Steel Fasteners (Metric Fasteners) 2-3 Other Torque Specifications 2-4 Equivalents & Conversions 2-5

Decimal & Millimeter Equivalents 2-5 U.S. to Metric Conversions 2-6 Domestic GrandStand Specifications 2-7 Domestic GrandStand Specifications cont. 2-8 International GrandStand Specifications 2-9 International GrandStand Specifications cont. 2-10

Chassis

Parking Brake Assembly Replacement 3-1 Parking Brake Assembly Removal 3-1 Parking Brake Assembly Installation 3-4 Height of Cut (HOC) Handle Assembly Replacement 3-10 HOC Handle Assembly Removal 3-10 HOC Handle Assembly Installation 3-12 Caster Wheel Assembly Replacement 3-17 Caster Wheel Assembly Removal 3-17 Caster Wheel Assembly Installation 3-20 Fuel Tank Assembly Replacement 3-26 Fuel Tank Assembly Removal 3-26 Fuel Tank Assembly Installation 3-29 Platform & Cushion Assembly Replacement 3-32 Platform & Cushion Assembly Removal 3-32 Platform & Cushion Assembly Installation 3-34 Lift Assist Cylinder Replacement (2009 only) 3-40 Lift Assist Cylinder Removal (2009 only) 3-40 Lift Assist Cylinder Installation (2009 only) 3-43 Lift Assist Spring Replacement (2010 only) 3-46 Lift Assist Spring Removal (2010 only) 3-46 Lift Assist Springs Installation (2010 only) 3-48 Wheel Motor Housing Assembly Replacement 3-49 Wheel Motor Housing Assembly Removal 3-49 Wheel Motor Housing Assembly Installation 3-53 Cross Shaft & Lift Assembly Replacement 3-57 Cross Shaft & Lift Assembly Removal 3-57 Cross Shaft & Lift Assembly Installation 3-62 Engine Base Replacement 3-71 Engine Base Removal 3-71 Engine Base Installation 3-92 Carrier Frame Replacement 3-123 Carrier Frame Removal 3-123 Carrier Frame Installation 3-140

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TABLE OF CONTENTS

Controls

LH Motion Control Lever Replacement 4-1 LH Motion Control Lever Removal 4-1 LH Motion Control Lever Installation 4-3 RH Motion Control Lever Replacement 4-4 RH Motion Control Lever Removal 4-4 RH Motion Control Lever Installation 4-7 RH Control Linkage Replacement 4-11 RH Control Linkage Removal 4-11 RH Control Linkage Installation 4-15 LH Control Linkage Replacement 4-20 LH Control Linkage Removal 4-20 LH Control Linkage Installation 4-24 Speed Control Cable & Shifter Replacement 4-31 Speed Control Cable & Shifter Removal 4-31 Speed Control Cable & Shifter Installation 4-34 Speed Control Adjustment 4-39 Control Cable Replacement 4-42 Control Cable Removal 4-42 Control Cable Installation 4-43 Choke Cable Replacement 4-46 Choke Cable Removal 4-46 Choke Cable Installation 4-47 Throttle Cable Replacement 4-50 Throttle Cable Removal 4-50 Throttle Cable Installation 4-52

Engine

Engine Replacement 5-1

Engine Removal 5-1

Engine Installation 5-9

Hydraulic Drive System

Pump Drive Belt Replacement 6-1 Pump Drive Belt Removal 6-1 Pump Drive Belt Installation 6-2 Pump Drive Belt Idler Replacement 6-4 Pump Drive Belt Idler Removal 6-4 Pump Drive Belt Idler Installation 6-6 Left Hydraulic Pump Replacement 6-9 Left Hydraulic Pump Removal 6-9 Left Hydraulic Pump Installation 6-22 Right Hydraulic Pump Replacement 6-35 Right Hydraulic Pump Removal 6-35 Right Hydraulic Pump Installation 6-48 Wheel Motor Replacement 6-62 Wheel Motor Removal 6-62 Wheel Motor Installation 6-69 Reservoir Tank Replacement 6-75 Reservoir Tank Removal 6-75 Reservoir Tank Installation 6-79

ii	Toro GrandStand Service Manual

TABLE OF CONTENTS

Hydraulic Drive System cont.

Hydraulic Filter Mount Replacement 6-83 Hydraulic Filter Mount Removal 6-83 Hydraulic Filter Mount Installation 6-86 Hydraulic Testing 6-91 Bleeding the Hydraulic System 6-95

Mower Deck

Mower Deck Belt Replacement 7-1 Mower Deck Belt Removal 7-1 Mower Deck Belt Installation 7-1 Spindle Replacement & Service 7-3 Mower Deck Spindle Removal 7-3 Mower Deck Spindle Installation 7-9 Spindle Service 7-14 Spring Idler & Adjustment Idler Replacement 7-21 Spring Idler Removal 7-21 Spring Idler Installation 7-22 Adjustment Idler Removal 7-23 Adjustment Idler Installation 7-24 Baffles & Skid Plate Replacement 7-26 Fixed Baffle Removal 7-26 Fixed Baffle Installation 7-27 Adjustable Baffle Removal 7-28 Adjustable Baffle Installation 7-30 Discharge Baffle Removal 7-31 Discharge Baffle Installation 7-32 Skid Plate Removal 7-33 Skid Plate Installation 7-34 Anti-Scalp Roller Replacement (60” Models Only) 7-34 Single Anti-Scalp Roller Removal 7-34 Single Anti-Scalp Roller Installation 7-36 Double Anti-Scalp Roller Removal 7-37 Double Anti-Scalp Roller Installation 7-38 Belt Cover Brackets Replacement 7-39 Early 2009 Belt Cover Bracket Removal 7-39 Early 2009 Belt Cover Bracket Installation 7-40 Mid 2009 & Later Belt Cover Brackets Removal 7-41 Mid 2009 & Later Belt Cover Brackets Installation 7-42 Grass Deflector Replacement 7-44 Grass Deflector Removal 7-44 Grass Deflector Installation 7-45 Mower Deck Replacement 7-47 Mower Deck Removal 7-47 Mower Deck Installation 7-48 Mower Deck Adjustments - Correcting the Mower Quality of Cut 7-50 Checking the Mower Deck Side-to-Side Height 7-50 Changing the Mower Deck Side-to-Side Height 7-51 Checking the Mower Deck Front-to-Rear Pitch 7-51 Changing the Mower Deck Front-to-Rear Pitch 7-52 Matching Height-of-Cut 7-53

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TABLE OF CONTENTS

Electrical

Component Testing 8-1 Ignition Switch 8-1 Purpose 8-1 Location 8-1 How It Works 8-1 Testing 8-1 Power Take Off (PTO) Switch 8-2 Purpose 8-2 Location 8-2 How It Works 8-2 Testing 8-2 Electric (PTO) Clutch 8-3 Purpose 8-3 Location 8-3 How It Works 8-3 Testing 8-3 Coil Resistance Measurement 8-3 Measuring Clutch Current Draw 8-4 Solenoid 8-4 Purpose 8-4 Location 8-4 How It Works 8-5 Testing 8-5 Operator Presence Control (OPC) Switch 8-6 Purpose 8-6 Location 8-6 How It Works 8-6 Testing 8-6 Neutral Switch 8-7 Purpose 8-7 Location 8-7 How It Works 8-7 Testing 8-7 Parking Brake Switch 8-8 Purpose 8-8 Location 8-8 How It Works 8-8 Testing 8-8 Fuse Block & Fuses 8-9 Purpose 8-9 Location 8-9 How It Works 8-9 Testing 8-9 Hour Meter/Control Module 8-10 Purpose 8-10 Location 8-10 How It Works 8-10 Testing 8-10

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TABLE OF CONTENTS

Electrical cont.

Component Replacement 8-11 Ignition Switch Removal 8-11 Ignition Switch Installation 8-12 Power Take Off (PTO) Switch Removal 8-13 Power Take Off (PTO) Switch Installation 8-14 Electric PTO Clutch Removal 8-14 Electric PTO Clutch Installation 8-23 Electric PTO Clutch Burnishing Procedure 8-32 Solenoid Removal 8-33 Solenoid Installation 8-34 Operator Presence Control (OPC) Switch Removal 8-36 Operator Presence Control (OPC) Switch Installation 8-36 Neutral Switch Removal 8-38 Neutral Switch Installation 8-38 Parking Brake Switch Removal 8-39 Parking Brake Switch Installation 8-39 Hour Meter/Control Module Removal 8-41 Hour Meter/Control Module Installation 8-42

Schematics

GrandStand Hydraulic Schematic 9-1 GrandStand Electrical Schematic 9-2

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TABLE OF CONTENTS

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vi	Toro GrandStand Service Manual

SAFETY INFORMATION

General Information
			1
!	This symbol means WARNING or	mower and attachment operator’s manuals contain
	PERSONAL SAFETY INSTRUCTION -	safety information and operating tips for safe operating
	read the instruction because if has to do	practices. Operator’s manuals are available through your
	with your safety. Failure to comply with the	Toro parts source or:
	eveninstructiondeath.may result in personal injury or	The Toro Company

	This manual is intended as a service and repair	Publications Department
		8111 Lyndale Avenue South
	manual only. The safety instructions provided herein
		Bloomington, MN 55420
	are for troubleshooting, service, and repair of the
	Toro GrandStand Stand-on Mower. The GrandStand

Think Safety First

Avoid unexpected starting of engine...

Always turn off the engine and disconnect the spark plug wire(s) before cleaning, adjusting, or repair.

Avoid lacerations and amputations...

Stay clear of all moving parts whenever the engine is running. Treat all normally moving parts as if they were moving whenever the engine is running or has the potential to start.

Avoid burns...

Do not touch the engine, muffler, or other components which may increase in temperature during operation, while the unit is running or shortly after it has been running.

Avoid fires and explosions...

Avoid spilling fuel and never smoke while working with any type of fuel or lubricant. Wipe up any spilled fuel or oil immediately. Never remove the fuel cap or add fuel when the engine is running. Always use approved, labeled containers for storing or transporting fuel and lubricants.

Avoid asphyxiation...

Never operate an engine in a confined area without proper ventilation.

Avoid injury from batteries...

Battery acid is poisonous and can cause burns. Avoid contact with skin, eyes, and clothing. Battery gases can explode. Keep cigarettes, sparks, and flames away from the battery.

Avoid injury due to inferior parts...

Use only original equipment parts to ensure that important safety criteria are met.

Avoid injury to bystanders...

Always clear the area of bystanders before starting or testing powered equipment.

Avoid injury due to projectiles...

Always clear the area of sticks, rocks, or any other debris that could be picked up and thrown by the powered equipment.

Avoid modifications...

Never alter or modify any part unless it is a factory approved procedure.

Avoid unsafe operation...

Always test the safety interlock system after making adjustments or repairs on the machine. Refer to the Electrical section in this manual for more information.

Toro GrandStand Service Manual

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SAFETY INFORMATION

1

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1-2	Toro GrandStand Service Manual

SPECIFICATIONS

Torque Specifications

Torque Specifications

Recommended fastener torque values are listed in the following tables. For critical applications, as determined by Toro, either the recommended torque or a torque that is unique to the application is clearly identified and specified in the service manual.

These torque specifications for the installation and tightening of fasteners shall apply to all fasteners which do not have a specific requirement identified in the service manual. The following factors shall be considered when applying torque: cleanliness of the fastener, use of a thread sealant (Loctite), degree of lubrication on the fastener, presence of a prevailing torque feature, hardness of the surface underneath of the fastener’s head, or similar condition which affects the installation.

As noted in the following tables, torque values should be reduced by 25% for lubricated fasteners to achieve the similar stress as a dry fastener. Torque values may also have to be reduced when the fastener is threaded into aluminum or brass. The specific torque value should be determined based on the aluminum or brass material strength, fastener size, length of thread engagement, etc.

The standard method of verifying torque shall be performed by marking a line on the fastener (head or nut) and mating part, then back off fastener 1/4 of a turn. Measure the torque required to tighten the fastener until the lines match up.

Fastener Identification

2

	.
Inch Series Bolts and Screws
(A) Grade 1 & 2		(C) Grade 8
(B) Grade 5

.

Metric Bolts and Screws

(A) Class 8.8	(B) Class 10.9

Toro GrandStand Service Manual

2-1

SPECIFICATIONS

Standard Torque for Dry, Zinc Plated & Steel Fasteners (Inch Series)

				Grade 1, 5, &		SAE Grade 1 Bolts, Screws,				SAE Grade 5 Bolts, Screws,					SAE Grade 8 Bolts, Screws,
			Thread Size	8 with Thin		Studs, & Sems with Regular				Studs, & Sems with Regular					Studs, & Sems with Regular
				Height Nuts		Height Nuts (SAE J995				Height Nuts (SAE J995					Height Nuts (SAE J995
						Grade 2 or Stronger Nuts)				Grade 2 or Stronger Nuts)					Grade 2 or Stronger Nuts)
	2
				In-lb		In-lb		N-cm		In-lb			N-cm		In-lb		N-cm
			# 6 - 32 UNC	10	± 2	13	± 2	147	± 23	15	±	2	169	± 23	23	± 2	260	± 34
			# 6 - 40 UNF							17	±	2	190	± 20	25	± 2	280	± 20
			# 8 - 32 UNC	13	± 2	25	± 5	282	± 30	29	±	3	330	± 30	41	± 4	460	± 45
			# 8 - 36 UNF							31 ± 3			350	± 30	43	± 4	31 ± 3
			# 10 - 24 UNC	18	± 2	30	± 5	339	± 56	42	± 4		475	± 45	60	± 6	674	± 70
			#10 - 32 UNF							48	± 4		540	± 45	68	± 6	765	± 70
			1/4 - 20 UNC	48	± 7	53	± 7	599	± 79	100	± 10		1125 ± 100		140	± 15	1580	± 170
			1/4 - 28 UNF	53	± 7	65 ± 10		734 ± 113		115 ± 10			1300	± 100	160	± 15	1800	± 170
			5/16 - 18 UNC	115 ± 15		105	± 15	1186 ± 169		200	± 25		2250	± 280	300	± 30	3390	± 340
			5/16 - 24 UNF	138	± 17	128	± 17	1446	± 192	225	± 25		2540	± 280	325	± 30	3670	± 340
				ft-lb		ft-lb		N-m		ft-lb			N-m		ft-lb		N-m
			3/8 - 16 UNC	16	± 2	16	± 2	22	± 3	30	± 3		41	± 4	43	± 4	58	± 5
			3/8 - 24 UNF	17	± 2	18	± 2	24	± 3	35	± 3		47	± 4	50	± 4	68	± 5
			7/16 - 14 UNC	27	± 3	27	± 3	37	± 4	50	± 5		68	± 7	70	± 7	68	± 9
			7/16 - 20 UNF	29	± 3	29	± 3	39	± 4	55	± 5		75	± 7	77	± 7	104 ± 9
			1/2 - 13 UNC	30	± 3	48	± 7	65	± 9	75	± 8		102 ± 11		105	± 10	142	± 14
			1/2 - 20 UNF	32	± 3	53	± 7	72	± 9	85	± 8		115	± 11	120	± 10	163	± 14
			5/8 - 11 UNC	65 ± 10		88 ± 12		119	± 16	150	± 15		203	± 20	210	± 20	285	± 27
			5/8 - 18 UNF	75 ± 10		95 ± 15		129	± 20	170	± 15		230	± 20	240	± 20	325	± 27
			3/4 - 10 UNC	93 ± 12		140	± 20	190	± 27	265	± 25		359	± 34	374	± 35	508	± 47
			3/4 - 16 UNF	115 ± 15		165	± 25	224	± 34	300	± 25		407	± 34	420	± 35	569	± 47
			7/8 - 9 UNC	140	± 20	225	± 25	305	± 34	430	± 45		583	± 61	600	± 60	813	± 81
			7/8 - 14 UNF	155	± 25	260	± 30	353	± 41	475	± 45		644	± 61	660	± 60	895	± 81

Note: Reduce torque values listed in the table above by 25% for lubricated fasteners. Lubricated fasteners are defined as threads coated with a lubricant such as oil, graphite, or thread sealant such as Loctite.

Note: Torque values may have to be reduced when installing fasteners into threaded aluminum or brass. The specific torque value should be determined based on the fastener size, the aluminum or base material strength, length of thread engagement, etc.

Note: The nominal torque values listed above for Grade 5 and 8 fasteners are based on 75% of the minimum proof load specified in SAE J429. The tolerance is approximately ± 10% of the nominal torque value. Thin height nuts include jam nuts.

2-2	Toro GrandStand Service Manual

SPECIFICATIONS

Standard Torque for Dry, Zinc & Steel Fasteners (Metric Fasteners)

		Class 8.8 Bolts, Screws, and Studs with				Class 10.9 Bolts, Screws, and Studs with
	Thread Size		Regular Height Nuts				Regular Height Nuts (
			(Class 8 or Strong Nuts)				Class 10 or Strong Nuts)
	M5 X 0.8	57 ± 5 in-lb		644 ± 68 N-cm		78 ± 8 in-lb		881 ± 90 N-cm
											2
	M6 X 1.0	96 ± 10 in-lb		1085 ± 113 N-cm		133 ± 14 in-lb		1503 ± 158 N-cm
	M8 X 1.25	19	± 2 ft-lb	26	± 3 N-m	28	± 3 ft-lb	38	± 4 N-m
	M10 X 1.5	38	± 4 ft-lb	52	± 5 N-m	54	± 6 ft-lb	73	± 8 N-m
	M12 X 1.75	66	± 7 ft-lb	90 ± 10 N-m		93 ± 10 ft-lb		126	± 14 N-m
	M16 X 2.0	166	± 15 ft-lb	225	± 23 N-m	229	± 23 ft-lb	310	± 31 N-m
	M20 X 2.5	325	± 33 ft-lb	440	± 45 N-m	450	± 36 ft-lb	610	± 62 N-m

Note: Reduce torque values listed in the table above by 25% for lubricated fasteners. Lubricated fasteners are defined as threads coated with a lubricant such as oil, graphite, or thread sealant such as Loctite.

Note: Torque values may have to be reduced when installing fasteners into threaded aluminum or brass. The specific torque value should be determined based on the fastener size, the aluminum or base material strength, length of thread engagement, etc.

Note: The nominal torque values listed above are based on 75% of the minimum proof load specified in SAE J1199. The tolerance is approximately ± 10% of the nominal torque value. Thin height nuts include jam nuts.

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SPECIFICATIONS

Other Torque Specifications

SAE Grade 8 Steel Set Screws

		Thread Size	Recommended Torque
2			Square Head	Hex Socket
		1/4 - 20 UNC	140 ± 20 in-lb	73 ± 12 in-lb
		5/16 - 18 UNC	215 ± 35 in-lb	145 ± 20 in-lb
		3/8 - 16 UNC	35 ± 10 ft-lb	18 ± 3 ft-lb
		1/2 - 13 UNC	75 ± 15 ft-lb	50 ± 10 ft-lb

Wheel Bolts and Lug Nuts

	Thread Size	Recommended Torque**
	7/16 - 20 UNF	65 ± 10 ft-lb	88 ± 14 N-m
	Grade 5
	1/2 - 20 UNF	80 ± 10 ft-lb	108 ± 14 N-m
	Grade 5
	M12 X 1.25	80 ± 10 ft-lb	108 ± 14 N-m
	Class 8.8
	M12 X 1.5	80 ± 10 ft-lb	108 ± 14 N-m
	Class 8.8

** For steel wheels and non-lubricated fasteners.

Thread Cutting Screws

(Zinc Plated Steel)

Type 1, Type 23, or Type F

Thread Size	Baseline Torque*
No. 6 - 32 UNC	20 ± 5 in-lb
No. 8 - 32 UNC	30 ± 5 in-lb
No.10 - 24 UNC	38 ± 7 in-lb
1/4 - 20 UNC	85 ± 15 in-lb
5/16 - 18 UNC	110 ± 20 in-lb
3/8 - 16 UNC	200 ± 100 in-lb

Thread Cutting Screws

(Zinc Plated Steel)

	Thread	Threads per Inch		Baseline Torque*
	Size	Type A	Type B
	No. 6	18	20	20 ± 5 in-lb
	No. 8	15	18	30 ± 5 in-lb
	No. 10	12	16	38 ± 7 in-lb
	No. 12	11	14	85 ± 15 in-lb

* Hole size, material strength, material thickness and finish must be considered when determining specific torque values. All torque values are based on nonlubricated fasteners.

Conversion Factors
in-lb X 11.2985 = N-cm	N-cm X - 0.08851 = in-lb
ft-lb X 1.3558 = N-m	N-cm X 0.73776 = ft-lb

2-4	Toro GrandStand Service Manual

SPECIFICATIONS

Equivalents & Conversions

Decimal & Millimeter Equivalents

Fractions	Decimals	mm	Fractions		Decimals	mm
								2
1/64	0.015625	0.397		33/64	0.515625	13.097
1/32	0.03125	0.794	16/32		0.53125	13.484
3/64	0.046875	1.191		35/64	0.546875	13.891
1/16	0.0625	1.588	9/16		0.5625	14.288
5/64	0.078125	1.984		37/64	0.578125	14.684
3/32	0.9375	2.381	19/32		0.59375	15.081
1/8	0.1250	3.175	5/8		0.6250	15.875
9/64	0.140625	3.572		41/64	0.640625	16.272
5/32	0.15625	3.969	21/32		0.65625	16.669
11/64	0.171875	4.366		43/64	0.671875	17.066
3/16	0.1875	4.762	11/16		0.6875	17.462
13/64	0.203125	5.159		45/64	0.703125	17.859
7/32	0.21875	5.556	23/32		0.71875	18.256
15/64	0.234375	5.953		47/64	0.734375	18.653
1/4	0.2500	6.350	3/4		0.7500	19.050
17/64	0.265625	6.747		49/64	0.765625	19.447
9/32	0.28125	7.144	25/32		0.78125	19.844
19/64	0.296875	7.541		51/64	0.796875	20.241
5/16	0.3125	7.541	13/16		0.8125	20.638
21/64	0.328125	8.334		53/64	0.828125	21.034
11/32	0.34375	8.731	27/32		0.84375	21.431
23/64	0.359375	9.128		55/64	0.859375	21.828
3/8	0.3750	9.525	7/8		0.8750	22.225
25/64	0.390625	9.922		57/64	0.890625	22.622
13/32	0.40625	10.319	29/32		0.90625	23.019
27/64	0.421875	10.716		59/64	0.921875	23.416
7/16	0.4375	11.112	15/16		0.9375	23.812
29/64	0.453125	11.509		61/64	0.953125	24.209
15/32	0.46875	11.906	31/32		0.96875	24.606
31/64	0.484375	12.303		63/64	0.984375	25.003
1/2	0.5000	12.700	1		1.000	25.400
1 mm = 0.03937 in.				0.001 in. = 0.0254 mm

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SPECIFICATIONS

U.S. to Metric Conversions

			To Convert	Into	Multiply By
			Miles	Kilometers		1.609
			Yards	Meters		0.9144
2
		Linear	Feet	Meters		0.3048
			Feet	Centimeters		30.48
		Measurement	Inches	Meters
						0.0254
			Inches	Centimeters		2.54
			Inches	Millimeters
						25.4
			Square Miles	Square Kilometers		2.59
		Area	Square Feet	Square Meters		0.0929
			Square Inches	Square Centimeters		6.452
			Acre	Hectare		0.4047
			Cubic Yards	Cubic Meters		0.7646
		Volume	Cubic Feet	Cubic Meters		0.02832
			Cubic Inches	Cubic Centimeters		16.39
			Tons (Short)	Metric Tons		0.9078
		Weight	Pounds	Kilograms		0.4536
			Ounces	Grams		28.3495
		Pressure	Pounds/Sq. In.	Kilopascal		6.895
			Foot-pounds	Newton-Meters		1.356
		Work	Foot-pounds	Kilogram-Meters		0.1383
			Inch-pounds	Kilogram-Centimeters		1.152144
		Liquid Volume	Quarts	Liters		0.9463
			Gallons	Liters		3.785
		Liquid Flows	Gallons/Minute	Liters/Minute		3.785
		Temperature	Fahrenheit	Celsius	1.	Subtract 32°
					2.	Multiply by 5/9

2-6	Toro GrandStand Service Manual

SPECIFICATIONS

Domestic GrandStand Specifications

Engines:

Output (Max. @ 3600 RPM’s)

18 hp

19 hp

20 hp

23 hp

24 hp

26 hp

(13.4kW)

(14.2kW)

(14.9kW)

(17.2kW)

(17.9kW)

(19.4kW)

2

Make

Kawasaki

Kawasaki

Kawasaki

Kawasaki

Kawasaki

Kawasaki

Model

FS541V

FH580V

FS600V

FH680V

FS691V

FS730V

Hi-Idle

3600 ± 100

3600 ± 100

3600 ± 100

3600 ± 100

3600 ± 100

3600 ± 100

RPM

RPM

RPM

RPM

RPM

RPM

Starter

Electric

Electric

Electric

Electric

Electric

Electric

Spark Plug

NGK BPR4ES

Champion

NGK BPR4ES

NGK BPR4ES

NGK BPR4ES

NGK BPR4ES

RCJ8Y

Oil

SAE 10w-30/

SAE 10w-30/

SAE 10w-30/

SAE 10w-30/

SAE 10w-30/

SAE 10w-30/

SAE10w-40

SAE10w-40

SAE10w-40

SAE10w-40

SAE10w-40

SAE10w-40

Oil Capacity

2.1 Qt. (2.0 L)

3.8 Pint (1.8L)

2.1 Qt. (2.0 L)

2.0 Qt. (1.9 L)

2.2 Qt. (2.2 L)

2.2 Qt. (2.2 L)

CARB

79534 / 79536

79558 / 79559

No

Yes

79548 / 79549

79551

Fuel System:

7 or 12 Gallons (26.5 or 45.4L) fuel tank capacity

Traction Drives:

Traction Control:

Toro “Split-Handle” Control Levers

Hydraulic Pump:

Two Hydro-Gear Model PG 10cc (Same Part # / No Left & Right)

Hydraulic Wheel Motor:

Two Parker TEO-195

Hydraulic Oil Filter:

25 Micron Automotive Spin-On Type

Hydraulic Fluid:

Toro Hypr-Oil or Equivalent Synthetic 15w50

Hydraulic Fluid Capacity:

2.1 quarts (1.9 liters)

Parking Brake:

Standard Equipment

Ground Speed: (Hydro-MPH)

Variable, 3 (5 kph) to 8 (13 kph) MPH Fwd / 0 to 3 (5 kph) MPH Rev

Hourmeter with Service Indicator:

Standard Equipment

Wheels & Tires:

Front Castors Tires:

11”x4” - 5”, 4 ply, Smooth Tread, Semi Pneumatic

Front Castors Fork:

Heavy-Duty Design with 1” (25.4mm) Diameter Pivot Shaft

Rear Traction Tires:

20”x10”-8”, 4 ply with Turf Traction Tread

Mower Drive:

Toro GrandStand Service Manual

2-7

SPECIFICATIONS

Domestic GrandStand Specifications cont.

		Mower Engagement:			Engine Mounted Electric Clutch
		Clutch Adjustment:			Periodic Air Gap Adjustment Required - .018” + .003” (0.45 + 0.0762 mm)
		PTO Drive Belt:			HB Section w/Aramid (Kevlar) Cords and Dry Clutching Envelope
2
		PTO Idler:			Spring Loaded Pivot Hub w/Friction Washer Dampening
		Deck Drive Belt:			HA Section with Aramid (Kevlar) Cords and Standard (Non-Clutching) Envelope
		Deck Drive Idler:			Spring Loaded Pivot Hub w/Friction Washer Dampening
		Mower Decks:
		HOC Range:			1” to 5” in 1/4” increments (25.4mm to 127mm in 6.3mm increments)
		Blades:			Three .250” (6.3mm) Thick Heat Treated Steel Blades
		Spindles:			Machined Steel 1.00” (25mm) Diameter Shaft
		Spindle Housing:			Ductile Cast Iron, 9-3/8” (24cm) Diameter Mounted with Six Bolts
		Bearings:			Greasable Ball Bearings with Grease Fitting for Lubrication
		Construction:			7 gauge (.179” / 4.5mm) Steel Welded Construction
		Blade Tip Speed: (Domestic)			48” - 18,750 ft/m calculated @ 3600 engine RPM
					52” - 18,750 ft/m calculated @ 3600 engine RPM
					60” - 18,750 ft/m calculated @ 3600 engine RPM
		Skid Plate:			Standard
		Adjustable Discharge Baffle:			Standard
		Rubber Discharge Chute:			Standard
		Unit Dimensions:
		Deck			Width	Width	Length	Length
			Height		Deflector	Deflector	Platform		Weight*
		Width						Platform Up
					Down	Raised	Down
		48” (122cm)	48” (122cm)	63.5” (161cm)		49.5” (126cm)	74” (188cm)	53” (135cm)	887 lbs (400kg)
		52” (132cm)	48” (122cm)	67.5” (171cm)		53.5” (135cm)	74” (188cm)	53” (135cm)	900 lbs (408kg)
		60” (152cm)	48” (122cm)	75.5” (191cm)		61.5” (156cm)	74” (188cm)	53” (135cm)	925 lbs (419kg)

* Estimated operating weight

2-8	Toro GrandStand Service Manual

						SPECIFICATIONS
International GrandStand Specifications
Engines:
					Output (Max. @ 3000 RPM’s)
		19 hp (14.2 kW)				20 hp (17.2 kW)		23 hp (17.2 kW)			2
Make		Kawasaki				Kawasaki		Kawasaki
Model		FH580V				FS600V		FH680V
Hi-Idle		2900 ± 100 RPM				2900 ± 100 RPM		2900 ± 100 RPM
Starter		Electric				Electric		Electric
Spark Plug		Champion RCJ8Y				NGK BPR4ES		NGK BPR4ES
Oil	SAE 10w-30 / SAE10w-40					SAE 10w-30 / SAE10w-40		SAE 10w-30 / SAE10w-40
Oil Capacity		1.8 L (3.8 pint)				1.9 L (4.0 pint)		1.9 L (4.0 pint)
Fuel System:
26.5 L (7 gal.) Fuel Tank Capacity
Traction Drives:
Traction Control:				Toro Twin Lever Control Levers
Hydraulic Pump:				Two Hydro-Gear Model PG 10cc (Same Part # / No Left & Right)
Hydraulic Wheel Motor:				Two Parker TEO-195
Hydraulic Oil Filter:				25 Micron Automotive Spin-On Type
Hydraulic Fluid:				Toro Hypr-Oil or Equivalent Synthetic 15w50
Hydraulic Fluid Capacity:				1.9 L (2.1 quarts)
Parking Brake:				Standard Equipment
Ground Speed:				Variable, 3 (5 kph) to 8 (13 kph) MPH Fwd / 0 to 3 (5 kph) MPH Rev
Hourmeter with Service Indicator				Standard Equipment
Wheels and Tires:
Front Castors Tires:				11”x4” - 5”, 4 ply, Smooth Tread, Semi Pneumatic
Front Castors Fork:				Heavy-Duty Design with 25.4mm (1”) Diameter Pivot Shaft
Rear Traction Tires:				20”x10”-8”, 4 ply with Turf Traction Tread

Toro GrandStand Service Manual

2-9

SPECIFICATIONS

International GrandStand Specifications cont.

		Mower Drive:
		Mower Engagement:				Engine Mounted Electric Clutch
		Clutch Adjustment:				Periodic Air Gap Adjustment Required - 0.45 ± 0.0762 mm (.018” ± .003”)
		PTO Drive Belt:				HB Section W/ Aramid (Kevlar) Cords and Dry Clutching Envelope
2
		PTO Idler:				Spring Loaded Pivot Hub w/Friction Washer Dampening
		Deck Drive Belt:				HA Section with Aramid (Kevlar) Cords and Standard (Non-Clutching)
						Envelope
		Deck Drive Idler:				Spring Loaded Pivot Hub w/Friction Washer Dampening
		Mower Decks:
		HOC Range:				25.4mm (1”) to 127mm (5”) in 6.3mm (1/4”) increments
		Blades:				Three 6.3mm (.250”) Thick Heat Treated Steel Blades
		Spindles:				Machined Steel 25.4mm (1”) Diameter Shaft
		Spindle Housing:				Ductile Cast Iron, Mounted with Six Bolts
		Bearings:				Greasable Ball Bearings with Grease Fitting for Lubrication
		Construction:				7 gauge (.179” / 4.5mm) Steel Welded Construction
		Blade Tip Speed:				122cm (48”) - 18,750 ft/m calculated @ 3600 engine RPM
						132cm (52”) - 18,750 ft/m calculated @ 3600 engine RPM
		Skid Plate:				Standard
		Adjustable Discharge Baffle:				Standard
		Rubber Discharge Chute:				Standard
		Unit Dimensions:
					Width		Width	Length	Length
		Deck Width		Height	Deflector		Deflector		Platform		Weight*
								Platform Up
					Down		Raised		Down
		122cm (48”)		122cm (48”)	161cm (63.5”)		126cm (49.5”)	135cm (53”)	188cm (74”)	400 kg (881 lbs)
		132cm (52”)		122cm (48”)	171cm (67.5”)		135cm (53”)	135cm (53”)	188cm (74”)	408 kg (900 lbs)
		* Estimated operating weight

2-10	Toro GrandStand Service Manual

CHASSIS

Parking Brake Assembly

Replacement

Parking Brake Assembly Removal

1.Move the parking brake lever to the “OFF” position (Fig. 0001).

2.Remove the hairpin cotter and clevis pin securing the linkage yoke at the lower end of the brake rod to the brake assembly (Fig. 0002).

3

Fig. 0002 DSCN-0264a

			3. Move the parking brake lever to the “ON” position
Fig. 0001	IMG-1302a		(Fig. 0003).

Fig. 0003

IMG-1310a

Toro GrandStand Service Manual

3-1

CHASSIS

4.Remove the hairpin cotter from the top end of the parking brake rod. Slide the top end of the rod out of the handle (Fig. 0004).

5.Remove the hairpin cotter and clevis pin securing the top and bottom brake arms to the brake lever (Fig. 0006).

3

Fig. 0004

IMG-9347a

Fig. 0006

DSCN-0268a

Note: 2010 models use a nut to secure the upper end of the parking brake rod (Fig. 0005).

6.Disconnect the wire harness from the brake switch (Fig. 0007).

Fig. 0005

DSCN-0261a

Fig. 0007

DSCN-0265a

3-2	Toro GrandStand Service Manual

CHASSIS

7.Remove the carriage bolt and nut securing the brake lever and brake switch plate to the control tower, then remove the brake lever and brake switch plate (Fig. 0008).

9.Remove the shoulder bolt, thick washer and nut securing the LH side of the brake assembly to the chassis, then remove the brake assembly (Fig. 0010).

3

Fig. 0008

DSCN-0255a

Fig. 0010

IMG-1325a

8.Remove the bolt and nut securing the RH side of the brake assembly and torsion spring assembly to the chassis (Fig. 0009).

Fig. 0009

IMG-1324a

Toro GrandStand Service Manual

3-3

CHASSIS

Parking Brake Assembly Installation

1.Secure the LH side of the brake assembly to the chassis using the shoulder bolt, thick washer and nut (Fig. 0011).

3

Fig. 0011

IMG-1325a

2.Place the small spacer onto the bolt that secures the RH side of the brake assembly (Fig. 0012).

3.Position the bolt and spacer through the chassis mount and brake assembly. The spacer must be nested in the chassis mount (Fig. 0013).

Fig. 0013

IMG-1332a

4. Position the large spacer onto the bolt (Fig. 0014).

Fig. 0014

IMG-1334a

Fig. 0012

IMG-1329a

3-4	Toro GrandStand Service Manual

CHASSIS

5.Position the torsion spring over the spacer and bolt. The straight end of the spring is secured by the chassis, the curved end hooks under the brake assembly (Fig. 0015).

Fig. 0015

IMG-1336a

6.Secure the RH assembly using the washer and nut (Fig. 0016).

7.Position the carriage bolt through the RH side of the control tower (Fig. 0017).

3

Fig. 0017

IMG-1338a

8.Position the switch plate onto the carriage bolt (Fig. 0018).

Note: The switch plate has a square hole that must be nested onto the square shank of the carriage bolt.

Fig. 0016

IMG-1324a

Fig. 0018

IMG-1344a

Toro GrandStand Service Manual

3-5

CHASSIS

9.Position one of the large washers onto the carriage bolt (Fig. 0019).

11.Position the brake lever through the control panel and onto the shouldered spacer (Fig. 0021).

3

Fig. 0019

IMG-1348a

Fig. 0021

IMG-1355a

10.Position the shouldered spacer onto the carriage bolt (Fig. 0020).

12.Secure the brake lever assembly with the large washer and nut (Fig. 0022).

Fig. 0020

IMG-1351a

Fig. 0022

DSCN-0255a

3-6	Toro GrandStand Service Manual

CHASSIS

13.Position the clevis pin through the bottom brake arm (Fig. 0023).

15.Position the top brake arm onto the clevis pin (Fig. 0025).

3

Fig. 0023

IMG-1365a

Fig. 0025

DSCN-0259a

14.Insert the clevis pin through the brake lever (Fig. 0024).

16. Install the hairpin cotter to the clevis pin (Fig. 0026).

Fig. 0026

DSCN-0268a

Fig. 0024

IMG-1367a

Toro GrandStand Service Manual

3-7

CHASSIS

17.Plug the wire harness into the brake switch (Fig. 0027).

18.Feed the brake rod up through the fuel tank base and secure the upper end to the brake arm using a hairpin cotter (Fig. 0028).

3

Fig. 0027

DSCN-0265a

Fig. 0028

IMG-9347a

Note: 2010 models use a nut to secure the upper end of the parking brake rod (Fig. 0029).

Fig. 0029

DSCN-0261a

3-8	Toro GrandStand Service Manual

CHASSIS

19.Secure the yoke on the lower end of the brake rod to the brake assembly using a clevis pin and hairpin cotter (Fig. 0030).

21.If adjustment is needed, remove the clevis pin secur­ ing the yoke to the brake arm. Rotate the yoke to obtain the desired gap (Fig. 0032).

3

Fig. 0030

DSCN-0264a

Fig. 0032

DSCN-0264a

20.The brake assembly should contact the tires when there is approximately 3/4” (1.9cm) gap between the front edge of the control panel slot and the front edge of the brake lever (Fig. 0031).

A

Fig. 0031

DSCN-0263a

A. 3/4” (1.9cm)

Toro GrandStand Service Manual

3-9